Himachal Pradesh University (HPU) 2008-5th Sem B.Tech Computer Science and Engineering - exam paper

B.Tech. Vth Semester Examination(2008)
Principles of Operating System(CSE)
Paper: CS-5001

Note: Attempt 5 ques. in all, selecting 1 every from parts A,B,C and D. part E is compulsory.



Section-A
1. What are the various kinds of Operating system?
elaborate the various characteristics of every of them? [20]


2.What are the major criteria of Scheduling of Process?
How processes are executed in a co-operative mode? [20]


Section-B
3. What is a Deadlock? How is it detected and prevented? [20]


4. What is an Access matrix for protection? How is it
Implemented? [20]


Section-C

5. What is Virtual Memory? Why is it required? How
is it implemented in an operating system? [20]


6. elaborate various Disk Scheduling algorithm? Discus. [20]



Section-D

7. What is a Process Sync? elaborate various algorithm for
Process sync? [20]


8. elaborate various algorithm for space allocation? Discus. [20]



Section-E

9. Write short answers:

(i) What is Internal fragmentation? [2]

(ii) What is situation switching? [2]

(iii) What is Multitasking ? [2]

(iv) What is Thrashing ? [2]

(v) What is Reentrant code? [2]

(vi) What is Swap space ? [2]

(vii) What is Demand paging ? [2]

(vii) How security threat is monitored ? [2]]

(ix) What is Multithread ? [2]

(x) What is Real-time scheduling. [2]

Earning:   Approval pending.